Question Review the control chart on cesarian sections (Exhibit 14.6). The... Review the control chart on cesarian sections (Exhibit 14.6). The obstetrics service notes that it successfully reduced the mean rate 21 months ago and that the remaining variation is well within the usual definition of a controlled process, which is that no report exceeds 3 sigma control limits. Therefore, its staff says, no opportunity for improvement can be found on cesarian sections. The chief medical officer wants to know what further investigation is appropriate before she accepts this as a valid conclusion. What additional information would you suggest providing to the chief medical officer in an effort to confirm that an OFI is not present? Or - has an OFI presented itself? Business Management